Lake Poygan vs Rush Lake
Water quality, depth, fish species, and recreation comparison.
Rush Lake has a higher water quality grade (B, Good) than Lake Poygan (C, Fair). Both are in Winnebago County, Wisconsin.
C
Lake Poygan
Winnebago County, Wisconsin
Moderate clarity, visible to about 8.2 ft.
B
Rush Lake
Winnebago County, Wisconsin
Good clarity, visible to about 10.7 ft.
Side-by-Side Metrics
| Metric | Lake Poygan | Rush Lake |
|---|---|---|
| Overall Grade | C (Fair) | B (Good) |
| Water Clarity | 8.2 ft | 10.7 ft |
| Phosphorus | No data | 26 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 11 ft | - |
| Surface Area | 14.0K acres | 2.7K acres |
| Public Access | Yes | Yes |
| Fish Species | 8 | 2 |
| Trophic State | mesotrophic | mesotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Rush Lake wins on overall water quality with a Grade B versus Lake Poygan's Grade C. Water clarity: 10.7 ft vs 8.2 ft. For more fish-species variety, Lake Poygan edges ahead with 8 documented species.